http://webreflection.blogspot.com/2009/08/pyramidom-from-alpha-to-beta.html
It treats the DOM like a visual or auditory spectrum. If you click the
bookmark link (and have JS enabled), you will see the visualization on
the left. You can mouse over it to highlight the associated element.
Would be really cool for something like Xopus :) or other browser
based DOM manipulators.
best,
-Rob